All of this is good, sure. BUT if we're being honest the most broken jutsu is Thousand Years of Death.

It is a secret move, the opponents would never see it coming.

The distance and power put into the move could push the jutsu so far up the * of the opponent that they could actually die from a rupture on the inside.

If opponent clenches, stopping the jutsu, then you will instead launch them into actual space.

The ULTIMATE taijutsu attack. It could destroy a truth seeking orb because as you said, they are "unninjutsuable." Thousand Years of Death requires no nature release, however the prospect of a fire style sounds pretty great. Endless possibilities.

The move requires little prior training and anyone can cast with no hand seals.

This is why Thousand Years of Death is the most broken jutsu.